Synthesis and Characterization of Platinum and Palladium Clusters with Phosphide Ligands
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Journal of Organometallic Chemistry
ISSN: 0022-328X
|
| Вых. Данные |
Год: 1993,
Том: 451,
Номер: 1-2,
Страницы: 231-241
Страниц
: 11
DOI:
10.1016/0022-328X(93)83030-Y
|
| Ключевые слова |
CRYSTAL-STRUCTURE; BOND-CLEAVAGE; TRIPHENYLPHOSPHINE; COMPLEXES |
| Авторы |
Moiseev Ilya I.
1
,
Kozitsyna Natalya Yu.
1
,
Kochubey Dmitry I.
2
,
Kolomijchuk Vsevolod N.
2
,
Zamaraev Kirill I.
2
|
| Организации |
| 1 |
Institute of General & Inorganic Chemistry, Russian Academy of Sciences, 31 Leninski Prosp., 117907 Moscow (Russian Federation)
|
| 2 |
Institute of Catalysis, Russian Academy of Sciences, Pr. akademika Lavrenteva 15, 630090 Novosibirsk (Russian Federation)
|
|
Clusters of composition [Pt(PPh2)]n, n = 6−10, have been synthesized by reduction of a series of PtII complexes [(PPh3)Pt (OAc)G]m (G = (OAc)2 · PdC3H5, m = 1; G = Cl, OAc, (OAC)2Ag, m = 2) with H2, HCOOH and Na-amalgam. A hydridophosphide PdII complex [Pd2(PPh2)Hx]n was obtained in an analogous manner by reduction of [(PPh3)Pd(OAc)2] 2 with HCOOH. Additionally a complex with diphenylphosphonic acid as a ligand [Pd(μ-O2PPh2)(C6H5)(PPh3)]2 was obtained and characterized with X-ray data. The formation of O2PPh2 anion under strictly anaerobic reductive conditions implies the transfer of an O atom from the carboxylic ligand to the P atom of the phosphorus-containing ligand. Cleavage of the CPh bond seems to be a common process for the reductive reactions of both Pd and Pt phosphine complexes. Phosphide clusters of compositions [Pt(PPh2) n, and [Pd2(PPh2)Hx]n were characterized with IR, SAXS, EXAFS and NMR data and molecular mass measurements.